Analog Devices AD8251 Evaluation Board AD8251-EVALZ AD8251-EVALZ Data Sheet
Product codes
AD8251-EVALZ
Evaluation Board for G = 1, 2, 4, 8,
10 MHz, 20 V/μs Programmable Gain In-Amp
AD8251-EVALZ
Rev. 0
Evaluation boards are only intended for device evaluation and not for production purposes.
Evaluation boards as supplied “as is” and without warranties of any kind, express, implied, or
statutory including, but not limited to, any implied warranty of merchantability or fitness for a
particular purpose. No license is granted by implication or otherwise under any patents or other
intellectual property by application or use of evaluation boards. Information furnished by Analog
Devices is believed to be accurate and reliable. However, no responsibility is assumed by Analog
Devices for its use, nor for any infringements of patents or other rights of third parties that may result
from its use. Analog Devices reserves the right to change devices or specifications at any time
without notice. Trademarks and registered trademarks are the property of their respective owners.
Evaluation boards are not authorized to be used in life support devices or systems.
Evaluation boards as supplied “as is” and without warranties of any kind, express, implied, or
statutory including, but not limited to, any implied warranty of merchantability or fitness for a
particular purpose. No license is granted by implication or otherwise under any patents or other
intellectual property by application or use of evaluation boards. Information furnished by Analog
Devices is believed to be accurate and reliable. However, no responsibility is assumed by Analog
Devices for its use, nor for any infringements of patents or other rights of third parties that may result
from its use. Analog Devices reserves the right to change devices or specifications at any time
without notice. Trademarks and registered trademarks are the property of their respective owners.
Evaluation boards are not authorized to be used in life support devices or systems.
One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A.
Tel: 781.329.4700
www.analog.com
Fax: 781.461.3113
©2007 Analog Devices, Inc. All rights reserved.
FEATURES
Quick evaluation
On-board gain control switches
SMA connectors for high speed gain testing
On-board gain control switches
SMA connectors for high speed gain testing
GENERAL DESCRIPTION
The AD8251-EVALZ is designed to enable quick evaluation of
the AD8251 programmable gain instrumentation amplifier
(PGIA). The evaluation board includes on-board gain setting
switches to quickly demonstrate the software gain program-
mability of the AD8251. In addition, an external logic generator
can be connected to the AD8251-EVALZ SMA ports to test the
gain control of the PGIA.
the AD8251 programmable gain instrumentation amplifier
(PGIA). The evaluation board includes on-board gain setting
switches to quickly demonstrate the software gain program-
mability of the AD8251. In addition, an external logic generator
can be connected to the AD8251-EVALZ SMA ports to test the
gain control of the PGIA.
0
683
8-
0
01
A1
TP4
WR
TP5
A0
TP3
VOUT
TP1
W2
W3
DGND
R6
2kΩ
2kΩ
W1
HI
HI
R7
2kΩ
2kΩ
4
5
1
10
U1
AD8251
6
2
7
9
3
8
SW1
SW2
–V
S
C3
0.1µF
0.1µF
C5
C6
C7
C4
0.1µF
0.1µF
VREF
JP1
R2
IN–
TP2
R1
R3
R5
IN+
OUT
R4
C8
C1
10µF
10µF
+
+V
S
–V
S
C2
10µF
10µF
+
DGND
JP3
C10
GND2
GND1
R8
0Ω
0Ω
+V
S
HI
TP6
C9
0.1µF
0.1µF
TP7
1
U2
2
3
5
4
ADR392
+V
S
–V
S
Figure 1. Schematic